Material is cu0058 location unknown
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
NSN 5985-00-104-0301
NSN 5960-01-439-9517
NSN 6650-00-234-3275
NSN 4140-01-279-4311
NSN 7035-00-931-9415
NSN 5920-01-631-3203
NSN 5996-01-604-9653
NSN 6645-00-117-9839
NSN 4140-01-384-3998
NSN 6135-01-104-3790
NSN 5935-00-590-9017
NSN 6320-01-384-3850